It’s still persisting.
Got it on Balance Druid repeatedly today.
Adaptive Single Target is fine
Adaptive AoE gives me The specified gearing strategy could not be found: AmrMythicPlus|AmrDruidBalanceDefault|Heroic

Still working on regenerating balance druid data – did you try the workaround of changing your talents? Stellar Drift seemed to be the main culprit… change it to one of the other talents, see if that gets around it for now.

The new balance druid data should be available later today if all goes well.